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Click "Check My Thumbnail" on the homepage, sign in with Google, upload your thumbnail image, select your game, and click analyze. You'll get a score and actionable fixes within seconds.

We support PNG and JPG files up to 5MB. For best results, upload your thumbnail at 1280×720 resolution (standard YouTube thumbnail size).

Yes. We use Google Sign-In to manage your account and keep your analysis history private. We don't access any of your YouTube data.

Your score (0–100) reflects how strong your thumbnail is across clarity, contrast, focus, text readability, and emotional impact. Above 70 is solid. Below 50 needs work.

VidLint uses computer vision and AI models trained on thousands of thumbnails. It catches the most common weaknesses reliably, but it's a tool — not a guarantee. Use the fixes as strong suggestions.

Yes! That's exactly what VidLint is designed for. Upload your rough draft, see what's weak, and fix it before you publish.

The Free plan includes a limited number of daily checks with basic scoring and standard processing.

Pro gives you unlimited checks, deeper scoring analysis, and stronger fix suggestions. $19/month.

Email us at zeke@vidlint.com and we'll cancel immediately. No questions asked.